The Waveguide Assembly, cataloged under National Stock Number 5985-01-309-2997, is classified within Federal Supply Class 5985 (Antennas, Waveguides, and Related Equipment) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Frontgrade Technologies Inc.. Government technical data includes 16 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-309-2997 |
| Primary Part Number | 86CD0278-1 |
| Item Name | Waveguide Assembly |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Frontgrade Technologies Inc. |
| Status | ACTIVE |
| Flange Quantity | 2 |
| Voltage Standing Wave Ratio | 1.36 |
| Style Designator | OFFSET BEND TYPE |
| Flexibility | RIGID THIRD TUBING SEGMENT |
| Flexibility | FLEXIBLE SECOND TUBING SEGMENT |
| Flexibility | RIGID FIFTH TUBING SEGMENT |
| Flexibility | RIGID FIRST TUBING SEGMENT |
| Flexibility | FLEXIBLE FOURTH TUBING SEGMENT |
| Operating Pressure | 25.0 POUNDS PER SQUARE INCH GAUGE (PSIG) MAXIMUM LBS |
| Waveguide Center to Center Distance | 1.840 INCHES NOMINAL IN |
| Waveguide Length | 63.330 INCHES NOMINAL IN |
| Material | ALUMINUM THIRD TUBING SEGMENT |
| Material | ALUMINUM FIRST TUBING SEGMENT |
| Material | BERYLLIUM SECOND TUBING SEGMENT |
| Material | ALUMINUM FIFTH TUBING SEGMENT |
| Material | BERYLLIUM FOURTH TUBING SEGMENT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 86CD0278-1 | L3harris Technologies Integrated Systems L.p. Dba L3harris Technologies (USA) |
| 86CD0278-1 PRIMARY | Frontgrade Technologies Inc. (USA) |
NSN 5985-01-309-2997 is a Waveguide Assembly, manufactured by Frontgrade Technologies Inc., classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-309-2997 has 2 manufacturer part numbers on file: 86CD0278-1 (L3harris Technologies Integrated Systems L.p. Dba L3harris Technologies), 86CD0278-1 (Frontgrade Technologies Inc.).
Key specifications for 86CD0278-1: Flange Quantity: 2; Voltage Standing Wave Ratio: 1.36; Style Designator: OFFSET BEND TYPE; Flexibility: RIGID THIRD TUBING SEGMENT. 16 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 5985-01-309-2997 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.